722601020 has 24 divisors (see below), whose sum is σ = 1528544304. Its totient is φ = 286929536.

The previous prime is 722601017. The next prime is 722601029. The reversal of 722601020 is 20106227.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 722600983 and 722601001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722601029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129122 + ... + 134601.

It is an arithmetic number, because the mean of its divisors is an integer number (63689346).

Almost surely, 2^722601020 is an apocalyptic number.

It is an amenable number.

722601020 is an abundant number, since it is smaller than the sum of its proper divisors (805943284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722601020 is a wasteful number, since it uses less digits than its factorization.

722601020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263869 (or 263867 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 722601020 is about 26881.2391827460. The cubic root of 722601020 is about 897.3589322126.

Adding to 722601020 its reverse (20106227), we get a palindrome (742707247).

The spelling of 722601020 in words is "seven hundred twenty-two million, six hundred one thousand, twenty".